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Cypress USB Type-C CCGx controller firmware version 3.1.10 (which is being used in many NVIDIA GPU cards) has known issue of not triggering interrupt when a USB device is hot plugged to runtime resume the controller. If any GPU card gets latest kernel with runtime pm support but does not get latest fixed firmware then also it should continue to work and therefore a workaround is required to check for any connector change event. The workaround is that i2c bus driver will call pm_request_resume() to runtime resume ucsi_ccg driver. CCG driver will call the ISR for any connector change event for NVIDIA GPU card and only if it has old CCG firmware with the known issue. Signed-off-by: Ajay Gupta <ajayg@nvidia.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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| .. | ||
| atm | ||
| c67x00 | ||
| chipidea | ||
| class | ||
| common | ||
| core | ||
| dwc2 | ||
| dwc3 | ||
| early | ||
| gadget | ||
| host | ||
| image | ||
| isp1760 | ||
| misc | ||
| mon | ||
| mtu3 | ||
| musb | ||
| phy | ||
| renesas_usbhs | ||
| roles | ||
| serial | ||
| storage | ||
| typec | ||
| usbip | ||
| wusbcore | ||
| Kconfig | ||
| Makefile | ||
| usb-skeleton.c | ||